Simple Wake-on-lan - Printable Version

Code:

--[[ Librairy : Wake-on-lan
Author : Matthieu Bouthors

Use with mac address 
example : WOL("4c-cc-6a-03-55-eb")

Reminder : only works if the destination is on the same subnet, not routable
]]--

function WOL(target)

  local socket = require("socket")
  local dest_ip="255.255.255.255"
  local port=9
  local udp = assert(socket.udp())
  udp:setoption('broadcast', true)
  
  clean_target = string.gsub(target,":","")
  clean_target = string.gsub(clean_target,"-","")

  hex_target = lmcore.hextostr(clean_target)

  payload = lmcore.hextostr("FFFFFFFFFFFF")
  for i=1,16 do
    payload = payload .. hex_target
  end
  
  assert(udp:sendto(payload, dest_ip, port))

end

Code:

function wol_send(mac_dest)

  local mac = ''
  for w in string.gmatch(mac_dest, "[0-9A-Za-z][0-9A-Za-z]") do
    mac = mac .. string.char(tonumber(w, 16))
  end
  local udp = require("socket").udp()
  udp:settimeout(1)
  udp:setoption("broadcast", true)
  udp:sendto(string.char(0xff):rep(6) .. mac:rep(16) , '255.255.255.255', 9)
  
end